Impacts of Regional-Scale Land Use/Land Cover Change on Diurnal Temperature Range

被引：39

作者：

Hua Wen-Jian ^{[1
]}

Chen Hai-Shan ^{[1
]}

机构：

[1] Nanjing Univ Informat Sci & Technol, Key Lab Meteorol Disaster, Minist Educ, Nanjing 210044, Jiangsu, Peoples R China

来源：

ADVANCES IN CLIMATE CHANGE RESEARCH | 2013年 / 4卷 / 03期

关键词：

land use/land cover change; diurnal temperature range; climate change;

D O I：

10.3724/SP.J.1248.2013.166

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The NCAR Community Atmosphere Model (CAM4.0) was used to investigate the climate effects of land use/land cover change (LUCC). Two simulations, one with potential land cover without significant human intervention and the other with current land use, were conducted. Results show that the impacts of LUCC on diurnal temperature range (DTR) are more significant than on mean surface air temperature. The global average annual DTR change due to LUCC is -0.1 degrees C, which is three times as large as the mean temperature change. LUCC influences regional DTR as simulated by the model. In the mid-latitudes, LUCC leads to a decrease in DTR, which is mainly caused by the reduction in daily maximum temperature. However, there are some differences in the low latitudes. The reduction in DTR in East Asia is mainly the result of the decrease in daily maximum temperature, while in India, the decrease in DTR is due to the increase in daily minimum temperature. In general, the LUCC significantly controls the DTR change through the changes in canopy evaporation and transpiration.

引用

页码：166 / 172

页数：7

共 29 条

[1]

Bala G., Caldeira K., Wickett M., Et al., Combined climate and carbon-cycle effects of largescale deforestation, Proceedings of the National Academy of Sciences, 104, pp. 6550-6555, (2007)

[2]

Betts R.A., Offset of the potential carbon sink from boreal forestation by decreases in surface albedo, Nature, 408, pp. 187-190, (2000)

[3]

Bonan G.B., Pollard D., Thompson S.L., Effects of boreal forest vegetation on global climate, Nature, 359, pp. 716-718, (1992)

[4]

Bounoua L., Defries R.S., Collatz G.J., Et al., Effects of land cover conversion on surface climate, Climatic Change, 52, pp. 29-64, (2002)

[5]

Braganza K., Karoly D.J., Arblaster J.M., Diurnal temperature range as an index of global climate change during the twentieth century, Geophys. Res. Lett, 31, (2004)

[6]

Dai A., Trenberth K.E., Karl T.R., Effects of clouds, soil moisture, precipitation, and water vapor on diurnal temperature range, J. Climate, 12, pp. 2451-2473, (1999)

[7]

Easterling D.R., Horton B., Jones P.D., Et al., Maximum and minimum temperature trends for the globe, Science, 277, 5324, pp. 364-367, (1997)

[8]

Feddema J.J., Oleson K.W., Bonan G.B., Et al., The importance of land-cover change in simulating future climates, Science, 310, pp. 1674-1678, (2005)

[9]

Fu C.-B., Yuan H.-L., An virtual numerical experiment to understanding the impacts of recovering natural vegetation on the summer climate and environmental conditions in East Asia, Chinese Science Bulletin, 46, pp. 1199-1203, (2001)

[10]

Gao X.-J., Zhang D.-F., Chen Z.-X., Et al., Land use effects on climate in China as simulated by a regional climate model, Science China Earth Sciences, 50, pp. 620-628, (2007)

← 1 2 3 →